Exactly my point. So are those ten thousand bottom scraper sites I mention.
What I'm asking is how you intend to stop the same people who post their "Groupon Clone: $500 budget" nonsense on those 'lance sites off your list?
And how you're planning to stop the 100-500 "sir, we are professional A++++++++ software firm. we review your project and are ready to start immediately" responses that will be auto-spammed to every job on your list?
Those are actually good problems to solve, and a site that solved them would be a great win for the small fraction of freelance work that's actually conducted above board by talented developers and non-flaky clients. But a quick spin through what you've presented here makes it seem like your quick & dirty approach will actually amplify those problems.